<h2 id="radio">Radio button</h2>

<p>
  <label>
    <input type='radio' name="radiodemo">
    <span class="checkable">Select me</span>
  </label>
</p>
<p>
  <label>
    <input checked type='radio' name="radiodemo">
    <span class="checkable">Or me</span>
  </label>
</p>